Improvement in machines for veneering moldings



2 Sheets-Sheet] J. A. DAYTON. Machine for Veneering Moldings. b.203,896.

Patented May 21, I878.

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J. A.DAYTON. Machine for Veneering Moldings.

No. 203,896. Patented May 21,1878.

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UNITED STATES PATENT OFFICE.

JOHN A. DAYTON, OF BROOKLYN, NEW YORK.

IMPROVEMENT IN MACHINES FOR VENEERING MOLD INGS Specification formingpart of Letters Patent No. 203,896, dated May 21, 1878 application filedOctober 8, 1877.

To all whom it may concern:

Be it known that I, JOHN A. DAYTON, of

Brooklyn, county of Kings, and State of New York, have invented certainImprovements in Machines for Veneering Moldings, of which the followingis a specification: This invention has for its object to render themachine for polishing moldings described in Letters Patent of the UnitedStates No. 165,073, granted to me June 29, 1875, more perfect in itsoperation, and also to adapt it to veneering moldings, 8m.

The main portions of the machine, which are fully described in thehereinbefore-quoted Letters Patent, consist of a reciprocating framecarrying the scouring or polishing device, working on horizontal bearings on the top of the mainframe; abed capable of being raised andlowered, provided with two pairs of feeding-rollers, arranged one oneither side of the reciprocating frame, so as to feed the material to beoperated on under the reciprocating scourer or polisher, and therequisite mechanical devices for operating the reciprocating frame, thefeed-rollers, and the vertically-adjustable bed. The device for movingthe feedrollers consists of a slack belt running over a pulley on one ofthe shafts of the front pair of feeding-rollers, and a tightening pulleyand lever, so that the rollers may be caused to feed the material to thescourer o'r polisher, or remain at rest, at pleasure, the back pair offeeding-rollers being connected to the front pair by means of a belt orchain and pulleys, they drawing the molding from the polisher anddischarging it from the machine. If the work was not properly performedin passing through the machine, or if parts only of the molding wereproperly finished, it was necessary to pass the whole length of itthrough the machine a sufficient number of times to perfect it. Thisobjection is overcome in the present machine by placing another slackbelt on the other end of the shaft of the feed-roller, and a pulley andtightening lever, the belt being so arranged as to turn the feed-rollerin the opposite direction, so that if the attendant notice any part ofthe molding, &c., is not properly finished, he reverses the direction ofthe feed, and allows such part to be operated upon by the scourer orpolisher until finished, and thus save considerable time, besides whichthe double feed saves time in handling thematerial by admitting of itsbeing passed through the machine at either end.

This invention further relates to certain de' vices by which the machineis adapted to veneering moldings and other articles in lengths; and theyconsist of a gluingapparatus, a former for forcing the veneer afterbeing glued into all parts of the molding, and a heated roller, theperiphery of which is shaped to correspondto the section of the molding,for pressing and setting the veneer in place, all

of which will be fully hereinafter described by reference had to theaccompanying drawings,

forming part of this specification, in which Figure 1, Sheet 1, is aperspective View of my improved machine for veneering and finishingmoldings. Fig. 2, Sheet 2, is a longitudinal sectional elevation of thesame. Fig. 3, Sheet 2, is a plan view. Fig. 4, Sheet 1, is a transversesectional view of the heated roller; and Fig. 5, Sheet 1, embraces viewsof a modification of the veneering mechanism.

The main sideframes a a are provided at the top with horizontal guidesat a, on which the reciprocating frame b works. This frame is connectedto and receives its motion from the main shaft 0 by means of thedisk-cranks and connecting-rods c 0 The vertically-adjustable bed drests upon inclined bearings 01 d on the horizontal sliding frame 6.This frame 6 is operated by the crank-handle and screw e, which has itsbearings in the front end frame a.

On the bed d are two sets of bearings, which carry the two pairs offeeding-rollers f and f. The shaft of the lower roller of the pairprojects beyond the side frames a ct, and secured to it are the pulleysg and g. The roller f derives its motion from the main shaft 0 by meansof the two slack belts g and g passing over pulleys on the intermediateshaft-c one of which is a straight and the other a cross belt, so thatthe direction in which the feedrollers move is determined by one or theother of the belts g or g being made to gripe their respective pulleysby operating the tightened levers g or The two pairs of feeding-rollersare connected together bythe chain or belt 9", so that they revolvetogether in the same direction.

Secured to the front end of the main frame is the gluing apparatus,which consists of a receptacle, h, for holding the glue, having a hollowbottom for passing a heating agent through it, by which the glue is keptin a heated condition. In this receptacle h is placed the roller h.Motion is imparted to this roller by means of the belt h passing over apulley secured to its shaft and a pulley on the shaft of thefeeding-roller f.

On the front of the receptacle h is secured the guide h The strip ofveneeri passing through this guide h over the roller h thereby receivesa coating of glue at its under side. Theveneer from here passes over thefeedroller f down onto the molding j, which is fed along by the rollersf f, and is caused to assume the same form'of section, and to fit to themolding j by means of the forming device, which is shown as consistingof a bar, It, hinged to the standards supporting the rollers f f. Tothis bar is attached the former h, it having the same contour as theface of the molding. This former may be circular and fitted in bearings,so as to revolve. It is expedient in some cases to make it of softelastic material, and in others of rigid material.

After the veneer is pressed in its place by the former h it is made toadhere firmly to the moldings by the pressure-roller 1, whose peripheryis made to conform to the shape of the molding, as sh own at Fig. 4,which is drawn 011 an enlarged scale. It is hollow, to allow of itsbeing heated by passing steam through it by means of the flexible pipesZ Z, and it revolves in bearings in the frame P, which is pivoted to thereciprocating frame I). The reciprocatin g frame I) may beheldstationary by tightening up the gibs, in which case the drivin g-belt mwould be passed around a pulley on the intermediate shaft 0 as shown atFig. 2, Sheet 2; or it may be reciprocated the same as in scouring orpolishing, in which case the driving-belt would be passed around the periphery of one of the crank-disks, as shown in the perspective view,Fig. 1. .There may also be two or more heated pressure-rollers, to morefully dry the veneered molding before it leaves the machine.

In the drawings, the former h is shown as being placed between thefeed-rollers f f and pressure-roller l. The same result will follow ifit be placed in front of the feed-rollers or the upper feed-roller f canbe so formed as to obviate the necessity of using an extra former. Thegluing apparatus would then be placed at a greater distance from therollers than shown, or it may be placed on an independent frame, so thatit could be moved from one machine to another when more than one ofthese machines were used, thus reducing the cost of them.

At Fig. 5, Sheet 1, thefeed-roller f is shown, having the same form onits periphery as the section of the molding, and acting as a forming aswell as a feeding roller,

The vertical side guide-rollers o and 0 press the veneer on the sides ofthe molding; and if one or both sides are grooved, as shown at j, thenthe roller or rollers are made I to correspond therewith, as shown at o,

Having now described myinvention, Iclaim and desire to secure by LettersPatent- 1. In a machine for veneering and polishing moldings, thecombination of the straight and cross belts g g and theirtightening-levers with the feed-rollers f and f, adjustable bed d, andreciprocating frame I), constructed and operating substantially ashereinbefore set forth.

2. I11 combination, the gluing apparatus h h former h, andpressure-roller Z, substantially as and for the purposes hereinbeforeset forth.

3. The adjustable bed d and feeding-rollers f f, in combination with thegluing apparatus, former h, and pressure-roller l, substantially ashereinbefore set forth.

4. The gluing apparatus h h and pressureroller 1, in combination withthe feeding-rollers f f, the upper feeding-roller being so constructedas to operate also to form the veneer on the molding, substantially ashereinbefore set forth.

5. In a machine for veneering moldings, the combination of the gluingapparatus h h, the feeding and forming rollers f f, the vertical sidepressure-rollers o and 0, and the heated pressure-roller Z,substantially as and for the purposes hereinbefore set forth.

In testimony whereof I have hereunto set my hand this 5th day ofOctober, 1877.

JOHN A. DAYTON. Witnesses:

CHAS. J. GILMORE, ALFRED SHEnLocK.

